Precision and Test-Retest Repeatability of Stiffness Measurement with MR Elastography: A Multicenter Phantom Study
Efe Ozkaya, Paul Kennedy, Jun Chen, Octavia Bane, Jonathan R. Dillman, Kartik Jhaveri, Michael A. Ohliger, Phillip J. Rossman, Jean A. Tkach, John T. Doucette, Sudhakar K. Venkatesh, Richard L. Ehman, Bachir Taouli
Abstract
MR elastography demonstrated excellent stiffness measurement precision and test-retest repeatability across five study centers, 10 scanners, three manufacturers, two field strengths, two MR elastography sequences, and three phantoms mimicking different degrees of liver stiffness.
Topics & Concepts
MedicineImaging phantomRepeatabilityElastographyMulticenter studyNuclear medicineUltrasound elastographyRadiologyUltrasoundPathologyStatisticsRandomized controlled trialMathematicsUltrasound Imaging and ElastographyElasticity and Material ModelingPhotoacoustic and Ultrasonic Imaging